| 312,6 → 312,71 |
|---|
| return NULL; |
| } |
| |
| struct drm_i915_gem_object * |
| i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, |
| u32 stolen_offset, |
| u32 gtt_offset, |
| u32 size) |
| { |
| struct drm_i915_private *dev_priv = dev->dev_private; |
| struct drm_i915_gem_object *obj; |
| struct drm_mm_node *stolen; |
| |
| if (dev_priv->mm.stolen_base == 0) |
| return NULL; |
| |
| DRM_DEBUG_KMS("creating preallocated stolen object: stolen_offset=%x, gtt_offset=%x, size=%x\n", |
| stolen_offset, gtt_offset, size); |
| |
| /* KISS and expect everything to be page-aligned */ |
| BUG_ON(stolen_offset & 4095); |
| BUG_ON(gtt_offset & 4095); |
| BUG_ON(size & 4095); |
| |
| if (WARN_ON(size == 0)) |
| return NULL; |
| |
| stolen = drm_mm_create_block(&dev_priv->mm.stolen, |
| stolen_offset, size, |
| false); |
| if (stolen == NULL) { |
| DRM_DEBUG_KMS("failed to allocate stolen space\n"); |
| return NULL; |
| } |
| |
| obj = _i915_gem_object_create_stolen(dev, stolen); |
| if (obj == NULL) { |
| DRM_DEBUG_KMS("failed to allocate stolen object\n"); |
| drm_mm_put_block(stolen); |
| return NULL; |
| } |
| |
| /* To simplify the initialisation sequence between KMS and GTT, |
| * we allow construction of the stolen object prior to |
| * setting up the GTT space. The actual reservation will occur |
| * later. |
| */ |
| if (drm_mm_initialized(&dev_priv->mm.gtt_space)) { |
| obj->gtt_space = drm_mm_create_block(&dev_priv->mm.gtt_space, |
| gtt_offset, size, |
| false); |
| if (obj->gtt_space == NULL) { |
| DRM_DEBUG_KMS("failed to allocate stolen GTT space\n"); |
| drm_gem_object_unreference(&obj->base); |
| return NULL; |
| } |
| } else |
| obj->gtt_space = I915_GTT_RESERVED; |
| |
| obj->gtt_offset = gtt_offset; |
| obj->has_global_gtt_mapping = 1; |
| |
| list_add_tail(&obj->gtt_list, &dev_priv->mm.bound_list); |
| list_add_tail(&obj->mm_list, &dev_priv->mm.inactive_list); |
| |
| return obj; |
| } |
| |
| void |
| i915_gem_object_release_stolen(struct drm_i915_gem_object *obj) |
| { |